Tuesday morning, 4-year-old Madison began her Headstart class with lunchtime – a turkey sandwich, half a banana and a handful of carrots. It's a snack she and her 17 classmates are used to getting at the start of every day at the Hamilton Early Learning Center – but that may not always be the case.

Give a kid a toy truck and odds are, he can keep himself busy for hours – at least, that used to be the idea. But as more and more mobile apps targeted toward children hit the market, it may not be the case anymore, and that shift in entertainment could have consequences.